Classification of Hand Motion Using Surface EMG Signals

2017 ◽  
pp. 219-238
Author(s):  
Tang Xueyan ◽  
Liu Yunhui ◽  
Lu Congyi ◽  
Poon Weilun
Keyword(s):  
Author(s):  
Cagdas Topcu ◽  
Arzu Akgul ◽  
Merve Bedeloglu ◽  
Ela Naz Doger ◽  
Refik Sever ◽  
...  
Keyword(s):  

Author(s):  
Jakob C. Rosenvang ◽  
Ronnie W. Horup ◽  
Kevin Englehart ◽  
Winnie Jensen ◽  
Ernest N. Kamavuako
Keyword(s):  

Author(s):  
Kazuya Funada ◽  
Jinglong Wu ◽  
Satoshi Takahashi

In rehabilitating hemiplegic patients, purposeful movements such as the opening and closing of hands are reported to be more effective than passive movement with an instrument. The authors of this chapter used surface electromyogram (surface EMG) signals as a way to convey the patient’s conscious ability to open and close their hands. The muscles in the forearm contract when the hand is closed or opened, which creates a simple signal that is comparatively easy to measure with surface EMG, a simple measuring device. The action potentials of the muscles involved in the opening-and-closing motions of hands were measured from several points in the forearm when those muscles contracted, and their distribution was analyzed. The purpose of this study is to develop a simple system to recognize the movement of a patient’s hand using measurements of EMG signals from only the most characteristic points on the forearm to replace similar, but more complex, research such as multi-channel measurement and wave analysis by FFT. The authors specified the optimum measuring points on the palm and dorsal sides of the forearm for the recognition of hand motion by the experimental system. This system successfully recognized hand motion through the analysis of the surface EMG signals measured from only two optimum points to allow arbitrary control of the rehabilitation device based on the recognition results.


2015 ◽  
Vol 2015 ◽  
pp. 1-9
Author(s):  
Pei-Jarn Chen ◽  
Yi-Chun Du

This paper proposes a portable system for hand motion identification (HMI) using the features from data glove with bend sensors and multichannel surface electromyography (SEMG). SEMG could provide the information of muscle activities indirectly for HMI. However it is difficult to discriminate the finger motion like extension of thumb and little finger just using SEMG; the data glove with five bend sensors is designed to detect finger motions in the proposed system. Independent component analysis (ICA) and grey relational analysis (GRA) are used to data reduction and the core of identification, respectively. Six features are extracted from each SEMG channel, and three features are computed from five bend sensors in the data glove. To test the feasibility of the system, this study quantitatively compares the classification accuracies of twenty hand motions collected from 10 subjects. Compared to the performance with a back-propagation neural network and only using GRA method, the proposed method provides equivalent accuracy (>85%) with three training sets and faster processing time (20 ms). The results also demonstrate that ICA can effectively reduce the size of input features with GRA methods and, in turn, reduce the processing time with the low price of reduced identification rates.


2010 ◽  
Vol 48 (8) ◽  
pp. 773-781 ◽  
Author(s):  
Rok Istenič ◽  
Prodromos A. Kaplanis ◽  
Constantinos S. Pattichis ◽  
Damjan Zazula

Author(s):  
Juan C. Yepes ◽  
Alvaro J. Saldarriaga ◽  
Vanessa Montoya-Leal ◽  
Andres Orozco-Duque ◽  
Vera Z. Perez ◽  
...  

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